Window regulator with selfadjusting arm



June 4, 1946. c. M. VERHAGEN WINDOW REGULATOR WITH SELF-ADJUSTING ARMFiled June 15, 1941 3 Sheets-Sheet 1 iNvE'NToR. cmszzm M Ver/myezz;

June 1946. c. M. VERHAGEN 2,401,673

WINDOW REGULATOR WITH SELF-ADJUSTING ARM Filed June 15, 1941' :sSheets-Sheet 2 INVENTOR.

C/ZrwZZa/z M Var/zqgem BY MJZW/WW June 4, 1946. "c. M. VERHAGEN I2,401,673

} WINDOW REGULATOR WITH SELF-ADJUSTINGARM Filed June 13, 1941 3 Sheets-Sheet s INVENTOR. C/ZrMQQ/ZM Ker/zayam,

Patented June 4,1946

WINDOW REGULATOR WITH SELE- ADJUSTING. ARM

Christian M. Verhagen, Elkhart, Ind'., assignorto The Adlake Company,Chicago; 111., a corporation of Illinois Application runsrs,1941,.Serialno. 397,914.

This invention is concerned with window regulating mechanisms of thetype commonly employed in streetcars, buses and other passenger vehiclesfor raisingand lowering vertically movable sash.

One of the principal objects of the invention is to provide an improvedregulator which will lower a sash into its fullyclosed position,smoothly, and easily, without jamming, even though the position of theregulator with respect to the sash and sill be somewhat atvariance withthe theoretically correct position due to error in construction orinstallation.

Another object is to provide a regulator of this character in which thehand crank used in operating the same can be turned in either direction,and in which such turning if continued in the same direction will movethe sash first in one direction as far as it will go and then in theother direction, thus enabling the sash to be either closed or opened byturning the hand crank in but one direction.

Another object isto provide an improved regulator in which the torquearm connecting the hand crank with the track on the sash is ofresiliently retractable construction, whereby to compensate forvariation in the distance between the regulator and the sill.

Still another object is to provide an improved regulator in which thetrack carried by the sash is provided with an indexing recess for thereception of the traveler carried by the torque arm in the verticalposition of the torque arm.

Still another object is to provide such a regulator which will exertspring pressure on the sash against the sill when the sash is in itsfully lowered position.

While the foregoing statements are indicative in a general way of thenature of the invention, other more specific objects and advantages willbe apparent to those skilled in the art upon a full understanding of theconstruction, arrangement and operation of the improved regulator.

One embodiment of the invention is presented herein by way ofexemplification, but it will of course be appreciated that the inventionis capable of being incorporated in other modified forms coming equallywithin the scope of the appended claims.

In the accompanying drawings:

Fig. 1 is a vertical section through a vehicle window, showing the sameequipped with a regulator having the self-adjusting torque arm of theinvention;

Fig. 2 is a fragmentary face view of the inside 5 Claims.- (Cl. 26812G)-21 ofthe vehicle. directly above the window opening, showing thelocation of the regulator.

Fig. 3' is a fragmentary face view of the track mounted on the top railof the sash;

Fig. 4 is a vertical transversesecti'on through the track, taken on theline 44 of'Fig. 3;

Fig. 5 is a rear view of the regulator;

Fig. 6 is a front view of the same; and

Fig. '7 is an edge View of thev same.

As will be observed in the drawings, the window H! to which the improvedregulator is. applied includes a vertically movable sash H. A track l2of channeled formation. is secured in a horizontal position to the. toprail l3 ofthe sash, in a position above the header 14 of the window. Thetrack I 2 is engaged by an anti-friction roller [5. which is mounted ona tor ue arm l6 adjacent the outer end of the latter. The torque arm [6is rotated about a center IT by a hand crank I8 through reductiongearing I9. As the hand crank 18 and reduction gearing l9 may be ofcon.- ventional construction the same will not be described in detail.

The torque arm i6 is characterized by an outer portion Hia which isshift'ably mounted on the inner portion lBb ofthe torque arm formovementtoward and away from the inner-portion in a direction lengthwiseof the torque arm. The outer portion lea is arranged in lapped relationto the inner'portion I62) and is provided with side flanges 2B whichslidingly embrace the-side edges of the inner portion. The outer portionis held against the inner portion by headed studs 21 on the innerportionwhich extend through elongated slots 22 in the outer portion. Theinner portion is provided with laterally extending ears 23, and theouter portion is provided with similar longitudinally spaced cars 24.These ears are apertured for the reception of loosely fitting bolts 25,and coil springs 26 are positioned under compression about the bolts 25-between the ears 23 and 24-. The roller [5, which engages within thechanneled portion of the track I2, is rotatably mounted on a pin 21which is carried bythe-outer portion [5a of the torque arm.

Rotation of the hand crank L8 in either direction will cause the sash Hto either raise or-lower,

springsZB. .When the roller [5 is in its lowermostposition, midway ofthe track l2, it will snap into a recess 28 provided in the bottom ofthe channel portion of the track. The recess 28 will tend to bring themovement of the various parts of the regulator to rest in the fullyclosed position of the sash, and the action of the roller [5 in snappinginto the recess 28 can both be felt and heard. It will of course beunderstood that when the sash II has been moved into its fully raisedposition the torque arm [6 will be extending straight up.

With this improved regulator the sash II can be raised or lowered byturning the handle I8 in either direction, and any continued movement ofthe handle IS in one direction will first move the sash in one directionand then in the opposite .direction.

Because of the spring projected mounting of the roller I5, which rendersthe roller capable of retraction under spring resistance whenthe sashreaches its fully closedposition, the regulator will operate smoothlyand easily, without jamming, even though the position of the pivotal axill of the torque arm be a little high or low due to error inconstruction or installation. Regardless of minor variations in thelocation of the pivotal axis ll of the torque arm, a tightly closedengagement of the bottom rail of the sash with the sill of the windowwill be assured. When the sash ll reaches its lowermost position the.clicking noise resultin from the snapping of the roller l5 into therecess 28 in the track is a clear indication to anyone operating thesash that the latter has reached its fully closed position.

. I claim: 7 v

1. In a window regulatingmecham'sm for raising'and lowering a verticallymovable sash, a

torque arm, a hand crank connected with the .torque arm for turning thelatter, a track adapted to beconnected with the sash for causing thesash to move when the track is moved, a traveler carried by the outerportion of the torque arm in horizontally movable association with thetrack, and resiliently yieldable means for resisting movement of thetraveler toward the inner portion of the torque arm, said trackcomprising a horizontal channel which is provided with an indexingrecess for the reception of the traveler when the torque arm reaches avertical position.

2. In a window regulating mechanism for raising and lowering avertically movable sash with respect to a sill, a torque arm, a handcrank connected with the torque armrfor turning the latter,

said hand crank being continuously rotatable in either direction toalternately raise and lower the sash, a track adapted to be connectedwith the sash for causing the sash to move when the track is moved, atravelerv carried by the outer portion of the torque arm in horizontallymovable association with the track, said traveler being disposedapproximately midway of the track in the lowermost position of the sash,and resiliently respect to a frame member against which the sash isdesigned to abut, a torque arm, a hand crank connected with the torquearm for turning the latter, said hand crank being continuously rotatedin either direction to alternately raise and lower the sash, a trackadapted to be connected with the sash for causing the sash to move whenthe track is moved, a traveler carried by the outer portion of thetorque arm in horizontally movable association with the track, saidtraveler being disposed approximately midway of the track in theabutting position of the sash, and resiliently yieldable means forresisting movement of the traveler toward the inner portion of thetorque arm, said resiliently yieldable means yielding to permit the handcrank to be rotated beyond the position in which the sash ha moved intoabutment with the frame member.

4. In a window regulating mechanism for raising and lowering'avertically movable sash, a torque arm, a hand crank connected with thetorque arm for turning the latter, a track adapted to be connected withthe sash for causing the sash to move when the track is moved, atraveler carried by the outer portion of the torque arm in horizontallymovable association with the track, and resiliently yieldable means forresisting movement of the traveler toward the inner portion of thetorque arm, said track'comprising a horizontal channel which is providedwith an indexing recess for the reception of the traveler when thetorque arm reache a vertical position, and said indexing recesspermitting the traveler to move away from the inner portion of thetorque arm under the pressure of said resiliently yieldable means. r

5. In a window regulating mechanism for opening and closing a slidablesash with respect to the frame member against which the sash is designedto abut, a torque arm, a hand crank-connected with the torque arm forturning the latter, said hand crank being continuously rotatable ineither direction to alternately open and close the sash, a trackconnected with the sash for causing the sash to move when the track ismoved, and

a traveler carried by the outer portion of the

